Flue-ferrule.



No.'822,4 75. PATENTED JUNE 5, 1906. J. H. PRICE.

FLUB FERRULE.

APPLICATION FILED NOV. 25, 1905.

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented June 5, 1906.

Application filed November 25, 1905- Serial No. 289.118.

To all whom it may concern.-

Be it known that I, JAMES H. PRICE, a citizen of the United States, residing at Shenandoah, in the county of Page and State of Virginia, have invented a new and useful Improvement in Antileak Flue-Ferrules, of which the following is a specification.

This invention relates generally to flue- IO ferrules, and more particularly to an improved construction of ferrule, the object of which is to prevent the leak between the ferrule and head of boiler; and another object is to so construct said ferrule that those :5 portions thereof which prevent the leakage are rotected from the action of the fire.

ith these and certain other objects in view my invention consists, essentially, in

roviding the ferrule with an exterior annu- -o ar collar, which collaris adapted to fit snugly into a countersunk recess produced in the inner face of the head of boiler, said collar to be calked in any suitablemanner, the

ferrule and the end of the tube projecting therethrough being expanded and beaded in the usua manner. The invention consists also in the employment of a wed ed collar which is adapted to surround the flue and bind ti htly upon the 0 inwardly-extending end of the firrule and the invention consists also in certain details of construction and novelties of combination, all of which will be fully described hereinafter, and pointed out in the claims.

In the drawings forming a part of this specification, Figure -1' is a sectional view s owing my improved construction of ferrule employed in connection with the flue and head of boiler. Fig. 2 is a detail per- 0 spective view showing a portion of the inner face of head of boiler, and Fig. 3 is a detail perspective view of my im roved construction of ferrule. Fig. 4 is a etail perspective view of the clam in -r' Referring to t e awmgs A indicates the head of holler, having the ue.openings A, and each flue-o enin has a countersink or annular recess ro uced in the inner face of the head of bo' er. The ferrule C is made 50 the usual lo th and of any desired material.

The essentia feature of my ferrule consists of an annular collar D, which is arranged upon the exterior of the ferrule proper and is adapated to fit snugly in the countersunk recess said collar being arranged substantially midway the length of the ferrule, and it will of course be understood that this 061- lar is integral with the ferrule proper. After the ferrule has been inserted in the head of boiler, the outer end is expanded and rolled over,if necessary, and the annular collar is securely calked in the recess of the head of boiler and then the flue E is passed through the ferrule and its outer end rolled over and headed, as shown at E, it being understood that the end of the flue is tapered in order to bind tightly the metal ferrule.

e it is not necessary to employ a clamping-rin u on the inner end of ferrule and within t e oiler, I prefer to do so, and therefore arrange a clampingring F upon the flue before the end of flue is inserte in the ferrule. and after theflue has been firmly fixed in the ferrulethe clamping-ring F is forced over the inner end' of the ferrule toward the annular collar D, thereby firmly binding the inner portion of the ferrule upon the flue. The innerface of the ring is beveled or inclined, so that the ring acts as a binding-wedge as it is forced upon the ferrule, thereby preventing leakage between the ferruleand flue, and the integral annular collarof the ferrule being seated and packed in the annular recess in the boiler-head all danger of leakage between the ferrule and boiler-head is avoided.

It will be noted that the special features which I employ to revent leakage are all arranged within the boiler and are therefore protected from the burning action of the It will thus be seen that I provide an exceedinglfy cheap, simple, and efiicient form of flueerrule which will prevent leakage between the flue and ferrule and also between the ferrule and head of boiler.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination witha flue-ferrule having an exterior collar, of the boiler-head having a recess in the inner face thereof surround ing the flue-opening, and ada ted to receive in the ferrule, and a clamgin -rin arranged the exterior collar of the flueerrule and the upon the inner end of t e e e, for the 10 flue fitting in the ferrule as set forth. purpose set forth.

2. The combination with the boiler-head 5 having the flue-opening surrounded by an annular countersink or recess, of a flue-fer- Witnesses: rule having an annular exterior collar adapt E. B. MCBATH, ed'to fit in the annular recess, the flue fitting M. J. WINFREE.

JAMES H. PRICE. 

